參數(shù)資料
型號: DF1704
英文描述: Stereo, 24-Bit, 96kHz 8X Oversampling Digital Interpolation Filter DIGITAL-TO-ANALOG CONVERTER
中文描述: 立體聲,24位,96kHz的8倍過采樣數(shù)字插值濾波器的數(shù)字模擬轉(zhuǎn)換器
文件頁數(shù): 13/16頁
文件大小: 222K
代理商: DF1704
13
DF1704
Figure 11(b) shows an improved method for high perfor-
mance, mixed signal board layout. This method adds digital
isolation between the DF1704 and the audio DACs, and
provides complete isolation between the digital and analog
sections of the board. The Burr-Brown ISO150 dual digital
coupler provides excellent isolation, and operates at speeds
up to 80Mbps.
POWER SUPPLIES AND BYPASSING
The DF1704 requires a single +5V power supply for opera-
tion. The power supply should be bypassed by a 10
μ
F and
0.1
μ
F parallel capacitor combination. The capacitors should
be placed as close as possible to V
DD
(pin 22). Aluminum
electrolytics or tantalum capacitors can be used for the 10
μ
F
value, while ceramics may be used for the 0.1
μ
F value.
BASIC CIRCUIT CONNECTIONS
Figures 12 and 13 show basic circuit connections for the
DF1704. Figure 12 shows connections for Hardware mode
controls, while Figure 13 shows connections for Software
mode controls. Notice the placement of C
1
and C
2
in both
figures, as they are physically close to the DF1704.
TYPICAL APPLICATIONS
The DF1704 will typically be used in high performance
audio equipment, in conjunction with high performance
audio D/A converters. Figure 14 shows a typical application
circuit example, employing the DF1704, a digital audio
receiver, and two PCM1704 24-bit, 96kHz audio DACs.
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